Furnace



Patented June 7, 1.932

JOHN I. WALTERS,

OF IDEITROI'I, MICHIGAN, ASSIG-NOR 'IO SUPERIOR SAFETY FURNACE PIPE COMPANY, A CORPORATION OF MICHIGAN l FURNAOE Application led July 1, 1930. Serial No. 465,153.

This invention relates to furnaces of the type suitable for use in the heating of homes, and particularly to such furnaces as are of the `hot air type, the principal object being the provision of a construction by means of which the delivery of hot air to the various ducts leading from the furnace may be easily and quickly controlled.

Other objects are to provide a tiltable delector or baffle member in the dome of a hot air furnace for deecting the hot air rising into the dome in any direction desired; to provide a substantially flat baiiie underlying` the crown sheet of the dome of a hot air furnace and which may be tilted in any direction to deflect the heat rising into the dome to any pamrticular desired point therein; to provide means for tilting the baiiie various amounts in substantially any direction within the dome; and to provide a novel form of construction for supporting and tilting such deflector.

The above being among the objects of the present invention the same consists in certain features of construction and combinations of parts hereinafter described with reference to the accompanying drawing, and then claimed, having the above and other objects in view;

In the accompanying drawing which illustrates a suitable embodiment of the present invention, and in which like numerals refer to like parts throughout the several different views:

Fig. 1 is a front elevational view of a hot air furnace. p

Fig. 2 is a plan View of the furnace shown in Fig. 1.

Fig. 3 is an enlarged fragmentary vertical sectional view, taken through the top of the furnace shown in Figs. 1 and 2 as on the line 3 8 of Fig. 2.

It is well known that where residences or like structures are heated by hot air furnaces,

' the tendency of the heating system is to deliver the greatest amount of hot air to those rooms on the side of the residence opposite to that from which the wind is blowing, whereas the opposite condition is usually desirable. In other words, it is usually desir'- able to have the delivered into those rooms on the side of the residence from which the wind is blowing for such rooms therefore require a greater amount of heat to keep them atthe same temperature as the rest of the residence.

I am aware that various means have heretofore been suggested for baiiiing or deflecting the air rising into the dome of hot air furnaces so as to enable the bulk of the air to be selectively directed into those ducts leading to the coldest rooms, and substantially all of such furnaces are provided with a damper valve in each hot air duct permitting the regulation of the amount of heat passing through such ducts. However, it has been my experience that in substantially all of these constructions an undue amount of restriction is imposed on the flow of hot air from the dome of the furnace into the ducts, with the result that the efficiency of the heating system is materially reduced. The baflie or deliector provided in accordance with the present invention has been designed to eliminate the disadvantages inherent in these previously suggested constructions, it is simple in construction, economicalv to build and efcient in operation. n

Referring to the accompanying drawing, I show-in Fig. 1 what may be considered as a conventional type of hot air furnace having an outer sheet metal shell 10 terminating at its upper end in a dome 1l from which extends a plurality of ducts 12, 13, 14 and 15 leading to the various rooms in a residence or other building, and through which the air heated in the furnace is adapted to be delivered to such rooms. Any number of such ducts may, of course, be employed as necessity or desire dictates.

The shell 10 is shown as being provided with a conventional front frame 16 for the various doors such as -17 18, 19 and 20 which lead inwardly of the shell 10 and communicate with the heating element thereingener ally indicated as at 21 in Fig. 3. The heating element 21 is provided with the usual stack 22 which extends outwardly through the shell 10 and which is provided for carrygreatest amount of hot air' are more quickly cooled and j ing out the burnt products of combustion as in conventional constructions.

A dome 11 is provided with a crown sheet 25 of inverted flat cone shape as indicated, the outer edges of which are secured to the upper edges of the dome 1l by a lock seam such as is indicated at 26. The crown sheet 25 is preferably covered with sand or some other insulating material such as is conventional infettive t0 minimize the less ot heat through the crown sheet 25.A

ln accordance with the present invention the crown sheet 25 is centrally apertured as at 31 and l secure an upwardly opening centrally apertured cup-like member 28 to the crown sheet 25 about the aperture 31 by bolts 2 9l and nuts 30: with the aperture in the cup aligned with the aperture 3 1. The purpose ofthisfcup is to prevent the insulating 'material 27 from passing through the'openjng 3,1" in the crownsheet 25,. A post 32 projects loosely through the opening 31 and Aentends] both above and below the upper and lower surfaces of the cup 2S and its ends are threadf ed.V A nut 33 threaded on the post 32 abuts against the bottom of the cup. and limits axial movement of the post 32 d'ownwardly,relative to the cup. Below the crown sheet 2,5 abaffle or deflector member 35, is secured to, the post 32 as by nuts 3,6.4 This baffle extends into adjacent but spaced relationship with respect to the side walls of the dome ll and, al-. though it, may be substantially flat without materialy affecting itsl proper opera-tion, prefer to form it slightlycone-shaped, as inf dicated in Fig. 3, in order toI peri/nit it to be. constructed of relatively light sheet metal and yet be relatively stiff.v Furthermore, when, the. baie is bent upwardly into. 111. inf. vert-ed cone shape as shown, when it ia in its normal or neutral position it serve sto guide the hot air rising against it in a smooth easy flow into the hot air conduits. Above the upper edge of the cup 28 confined between two spaced pairs of' nuts 3,7 and 38, one end of an arm member 3 9 loosely encircles the post 32. The opposite end ofthe arml member 39 is provided with a, pair of hook portions 40. and 41 which may be engaged ,over the lock seam 26 as will be later described.

n In operation, the arm 39 will normally be positioned so that neither the hook 40 nor the hook 41 will engage the loclr seam, 26 and the weight of the deflector 35 will thus cause it to hang as indicated in full lines in Fig. 3 equally disposed with relation to, all of the conduits 12, 13, 14 and 15. As a matter of illustration, let us suppose that in a residence in. which thefurnace is employed, the wind is blowing toward the residence on the Side toward which, the conduit 12 leads. I #n such: acase the armv39 is swung around the post 32 to, that side ofvthe'furnace opposite the con*-v duit 12 and,if the wind is of mediunjtvelocity,

the hook 41 is engaged over the seam 26, thus causing the post 32 to tilt about that portion thereof passing through the opening 31 and causing the deflector 35 to tip upwardly on that side thereof adjacent the conduit 12 and downwardly on that side thereof opposite the conduit l2. The hot air then rising from the heating element 21 strikes the baffle 35 and a greater proportion thereof than normal is urgedY into the @enduit l2, thus uurs.

a area-ter flaw of het. air into the Conduit 12 and consequently, to that side of the house from which the wind is blowing than would normally be the case. inasmuch as the deector 35' stops short of the dome 11, the flow of hotl air to the ducts opposite the duct 12 is not` blocked but only artially restricted, and those ducts between he ducts 12 and 15 are affected very little, if any, consequently, these conduits receive sufficient hot air to heat the rooms to which they extend but, ofcourse, in lesser amounts thanis received by the duct 12. if the wind is blowingextreniely hard the hoolr 40 may be engaged over the lock seam 26 and thus cause agreater tilting of the deflector 35, and consequently, a greater flow of hot air into the conduit 1,2 and a lesser arnount into the conduits on the side of the furnace o pposite the conduit 1 2.l ln a like 1nanner, the deilector 35 may be tilted in any direction desired by simply swinging the arm I; air is desired to be delivered., and engaged withl the seam 2 6 to hold the deflector in any such adjusted position.

Wvhile l have shown the d'eflector 3,5' asbeing rigidly secured to the post 3 2, andv the arm` 39'as being rotatably mounted upon the post 32 it will be recognized that these fea,h tures are not essential to the proper practice of the present invention as long as the deflector 3,5` will tilt withl the post 32 and the arm 39 may be swung to any desiredl position around the periphery of the crown sheet 2-5. It will alsotbe apparent that the forming of the hooks 40 and 41 on the handle 3.9., for engagement with theseam 2,6, is a matter of economy in manufacture and, if desired, other means thanthe particular means shown may be provided for holding the. arm 3,9 in an adjusted position.`

Formal changes may be made in the specific embodiment of the invention de scribed without; departing from the spirit or substance of the broad inventiomthe scope ofwhi'ch is commensurate with the appended Claims,

lYhat l, claimis:

1. 'ina hot air furnace, combination, a dome, a crown sheet for said dome, a heating element under said dome, and a. defiector. tiltaloly supported between said crown sheet said elelnent for moyernentin more than one pla-ne.

' iat;

2. In a hot air furnace, in combination, a dome, a crown sheet for said dome, a heating element under said dome, a deiiector tiltably supported between said crown sheet and said element for bodily movement thereof, and means for holding said deflector in tilted position.

3. In a hot air furnace, in combination, a dome having a top sheet, a heating element under said dome, and a horizontally disposed deflector centrally supported for bodily movement between said sheet and said element.

4. In a hot air furnace, in combination, a dome having a top sheet, a heating element under said dome, and a horizontally disposed deflector between said element and said sheet supported for tilting movement in any direction. Y

5. In a hot air furnace, in combination, a dome having a top sheet, a heating element under said dome, a horizontally disposed deflector between said element and said sheet supported for tilting movement in any direction, and selective means for holding said deiiector in any one of a plurality of tilted positions.

6. In a hot air furnace, in combination, a dome having a top sheet, a heating element under said dome, a horizontally disposed deflector between said ele'ment and said sheet supported for tilting movement in any direction, means for tilting said deflector various degrees in any one of a plurality of different directions, and means for holding said deflector in said tilted positions.

7 In a hot air furnace, in combination, a dome having a top sheet provided with a centrally disposed aperture, a post projecting through said aperture and universally movable therein, a heating element below said dome, and a deiiector supported by said post between said element and said sheet.

8. In a hot air furnace, in combination, a dome having a top sheet provided with a centrally disposed aperture, a. post projecting through said aperture and universally movable therein, means limiting axial movement of said post downwardly, a heating element below said dome, and a deliector supported by said post between said element and said sheet.

9. In a hot air furnace, in combination, a dome having an inverted cone shaped top sheet, a. cup shaped member centrally secured to said sheet, the bottom of said cup and said sheet having aligned apertures, a post projecting through said apertures, and universally adjustable therein relative to said top sheet, an approximately fiat deflector secured to said post below said sheet, and means engaging said post above said sheet for holding said post in adjusted position.

10. In a hot air furnace, in combination, a dome having an inverted cone-shaped top sheet, a cup-shapedvmember centrally secured to said sheet, the bottom 'of said cup andV said sheet having .aligned apertures, a post proj ecting through said apertures and universally adjustable therein relative to said top sheet, an approximately lia-t deiiector secured to said. post below said sheet, and an arm engaging said post above vsaid sheet for holding said post in adjusted position.

11. In a hot air furnace, in combination, a dome having an inverted cone-shaped top sheet, a cup-shaped member centrally secured to said sheet, the bottom of said cup .and said sheet having aligned apertures, a post proj ecting through said apertures and universally adjustable therein relative to said top sheet, an approximately flat deflector secured to said post below said sheet, and an arm engaging said post above said sheet and swingable about the central axis of said dome for holding said post in adjusted position.

l2. In a hot air furnace, in combination, a dome having an inverted cone-shaped top sheet provided wit-h a central aperture, heat insulating material covering said sheet, an upwardly extending annular flange on Said top sheet surrounding said aperture for preventing passage of said material therethrough, a post projecting through said aperture and universally movable relative to said top sheet, a heating element below said dome, and a deflector secured to said post between said element and said top sheet and movable therewith.

13. In a hot air furnace, in combination, a dome having a top sheet provided with a centrally disposed aperture, a post projecting through said aperture and universally movable therein, a heating element below said dome, ducts extending outwardly from said dome, and a deflector supported by said post between said element and said sheet for regulating the relative iiow of hot air from said element into said ducts.

14. In a hot air furnace, in combination, a sheet metal dome having a top sheet joined thereto by a sea-m fo-rming an externally projecting bead, a heating element under said dome, a post projecting centrally through said top sheet and universally movable relative thereto, a deflector secured to said post between said element and said top sheet, an arm secured to said post above said top sheet and having an end projecting into adjacent relationship with respect to said bead, and catches on said arm engageable with said bead for holding said post in moved position.

15. In a hot air furnace, in combination, a dome, a crown sheet for said dome, a heating element under said dome, .an inverted coneshaped deflector tiltably supported between said crown sheet and said element, and means for holding said defl'ector in tilted position.

16. In a hot air furnace, in combination,

said deine, and am upWaJr a dome having a top Shebprovded with a cerrtrally disposed ing thrllgh said movable therein.

aperture, a post projectgaperture. and universally z; heating element below. dly and outwardly ext-ending deflector centrally supported by said post;- between s aid element and said sheet.

JOHN I+ WlhfllRYS'- 

